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h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields

🗓️ 18 Mar 2026 16:17:43Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 2 Views

SSE injection in h3 from unsanitized newlines in event stream fields enables arbitrary events.

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20 Mar 2026 21:27Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5 - 10
EPSS0.00025
SSVC
2